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MPLS-TP Pseudowire Configuration using OpenFlow 1.3

MPLS-TP Pseudowire Configuration using OpenFlow 1.3. draft-medved-pwe3-of-config-02. J.Medved A.McLachlan D.Meyer. Draft Summary. This draft is aimed 2 main area: Provisioning of Pseudowires in the MPLS-TP environment. (We are not covering the Transport LSP at this point)

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MPLS-TP Pseudowire Configuration using OpenFlow 1.3

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  1. MPLS-TP Pseudowire Configuration using OpenFlow 1.3 draft-medved-pwe3-of-config-02 J.Medved A.McLachlan D.Meyer

  2. Draft Summary • This draft is aimed 2 main area: • Provisioning of Pseudowires in the MPLS-TP environment. (We are not covering the Transport LSP at this point) • OAM setup over the data path for the Pseudowireswe are configuring.

  3. Method Summary • A PW is to be configured between an ingress and an egress attachment circuit. • Using an external OpenFlow Controller we provision the PW between the 2 end points. • Using OpenFlow rules we direct the desired packets into this PW. • Also using Open Flow rules we direct the OAM packets into the OAM Engine, or return them if they require, echo-mode bfd for example. • Redundancy uses the OpenFlow Group port as a fast-fail mechanism.

  4. Thoughts behind it • Why have we considered OpenFlow for this? • We wanted to enhance the programmatic operations of an MPLS-TP element. • OpenFlow can work well in this environment, due to its ability to program switching elements. • As it is an Open Standard it seems to fit well as part of an SDN approach for configuring PWs in the MPLS-TP environments.

  5. What issues does this draft address? • Some carriers have expressed a desire to have an open non-vendor specific provisioning. Neither CLI driven nor a vendor related provisioning platform. • OAM was a key requirement: • As OpenFlow 1.3 does not include OAM, we wanted to show how we can use OF rules to direct OAM packets to an independent OAM engine.

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